From: Dave Hansen <dave.hansen@intel.com>
To: Nadav Amit <namit@vmware.com>, Ingo Molnar <mingo@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
"H . Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org, Nadav Amit <nadav.amit@gmail.com>,
x86@kernel.org, Borislav Petkov <bp@alien8.de>,
David Woodhouse <dwmw@amazon.co.uk>
Subject: Re: [RFC PATCH 0/5] x86: dynamic indirect call promotion
Date: Tue, 23 Oct 2018 11:36:02 -0700 [thread overview]
Message-ID: <7182c1db-2b23-5d69-7f4c-856a6ad43f8e@intel.com> (raw)
In-Reply-To: <20181018005420.82993-1-namit@vmware.com>
On 10/17/18 5:54 PM, Nadav Amit wrote:
> base relpoline
> ---- ---------
> nginx 22898 25178 (+10%)
> redis-ycsb 24523 25486 (+4%)
> dbench 2144 2103 (+2%)
Just out of curiosity, which indirect branches are the culprits here for
causing the slowdowns?
next prev parent reply other threads:[~2018-10-23 18:36 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-18 0:54 [RFC PATCH 0/5] x86: dynamic indirect call promotion Nadav Amit
2018-10-18 0:54 ` [RFC PATCH 1/5] x86: introduce preemption disable prefix Nadav Amit
2018-10-18 1:22 ` Andy Lutomirski
2018-10-18 3:12 ` Nadav Amit
2018-10-18 3:26 ` Nadav Amit
2018-10-18 3:51 ` Andy Lutomirski
2018-10-18 16:47 ` Nadav Amit
2018-10-18 17:00 ` Andy Lutomirski
2018-10-18 17:25 ` Nadav Amit
2018-10-18 17:29 ` Andy Lutomirski
2018-10-18 17:42 ` Nadav Amit
2018-10-19 1:08 ` Nadav Amit
2018-10-19 4:29 ` Andy Lutomirski
2018-10-19 4:44 ` Nadav Amit
2018-10-20 1:22 ` Masami Hiramatsu
2018-10-19 5:00 ` Alexei Starovoitov
2018-10-19 8:22 ` Peter Zijlstra
2018-10-19 14:47 ` Alexei Starovoitov
2018-10-19 8:19 ` Peter Zijlstra
2018-10-19 10:38 ` Oleg Nesterov
2018-10-19 8:33 ` Peter Zijlstra
2018-10-19 14:29 ` Andy Lutomirski
2018-11-29 9:46 ` Peter Zijlstra
2018-10-18 7:54 ` Peter Zijlstra
2018-10-18 18:14 ` Nadav Amit
2018-10-18 0:54 ` [RFC PATCH 2/5] x86: patch indirect branch promotion Nadav Amit
2018-10-18 0:54 ` [RFC PATCH 3/5] x86: interface for accessing indirect branch locations Nadav Amit
2018-10-18 0:54 ` [RFC PATCH 4/5] x86: learning and patching indirect branch targets Nadav Amit
2018-10-18 0:54 ` [RFC PATCH 5/5] x86: relpoline: disabling interface Nadav Amit
2018-10-23 18:36 ` Dave Hansen [this message]
2018-10-23 20:32 ` [RFC PATCH 0/5] x86: dynamic indirect call promotion Nadav Amit
2018-10-23 20:37 ` Dave Hansen
2018-11-28 16:08 ` Josh Poimboeuf
2018-11-28 19:34 ` Nadav Amit
2018-11-29 0:38 ` Josh Poimboeuf
2018-11-29 1:40 ` Andy Lutomirski
2018-11-29 2:06 ` Nadav Amit
2018-11-29 3:24 ` Andy Lutomirski
2018-11-29 4:36 ` Josh Poimboeuf
2018-11-29 6:06 ` Andy Lutomirski
2018-11-29 15:19 ` Josh Poimboeuf
2018-12-01 6:52 ` Nadav Amit
2018-12-01 14:25 ` Josh Poimboeuf
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